Add PHPUnit tests

.gitignore

@@ -2,3 +2,5 @@
 vendor/
 composer.lock
 .DS_Store
+.phpunit.cache/
+.phpunit.result.cache

composer.json

@@ -1,24 +1,37 @@
 {
     "name": "kfoobar/laravel-uuid",
-    "description": "Eloquent UUID trait for Laravel",
-    "type": "plugin",
+    "description": "UUID Trait for Eloquent Models in Laravel",
+    "type": "library",
     "license": "MIT",
     "authors": [
         {
             "name": "KFoobar",
             "email": "[email protected]"
         }
     ],
-    "minimum-stability": "dev",
-    "prefer-stable": true,
     "require": {
         "php": "^7.3|^8.0",
-        "illuminate/database": ">=5.5",
-        "illuminate/support": ">=5.5"
+        "ext-json": "*",
+        "illuminate/database": "^5.5|^6.0|^7.0|^8.0|^9.0|^10.0",
+        "illuminate/support": "^5.5|^6.0|^7.0|^8.0|^9.0|^10.0"
+    },
+    "require-dev": {
+        "orchestra/testbench": "^8.11",
+        "phpunit/phpunit": "^10.1"
     },
+    "minimum-stability": "stable",
+    "prefer-stable": true,
     "autoload": {
         "psr-4": {
             "KFoobar\\Uuid\\": "src/"
         }
+    },
+    "autoload-dev": {
+        "psr-4": {
+            "KFoobar\\Uuid\\Test\\": "tests/"
+        }
+    },
+    "scripts": {
+        "test": "vendor/bin/phpunit"
     }
 }

phpunit.xml

@@ -0,0 +1,24 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<phpunit xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+    backupGlobals="false"
+    beStrictAboutTestsThatDoNotTestAnything="false"
+    bootstrap="vendor/autoload.php"
+    colors="true"
+    processIsolation="false"
+    stopOnFailure="false"
+    xsi:noNamespaceSchemaLocation="https://schema.phpunit.de/10.4/phpunit.xsd"
+    cacheDirectory=".phpunit.cache"
+    backupStaticProperties="false">
+  <testsuites>
+    <testsuite name="Unit">
+      <directory suffix="Test.php">./tests/Unit</directory>
+    </testsuite>
+  </testsuites>
+  <php>
+    <env name="APP_ENV" value="testing"/>
+    <env name="APP_KEY" value="AckfSECXIvnK5r28GVIWUAxmbBSjTsmF"/>
+    <env name="DB_CONNECTION" value="sqlite"/>
+    <env name="QUEUE_CONNECTION" value="array"/>
+    <env name="DB_DATABASE" value=":memory:"/>
+  </php>
+</phpunit>

tests/Fixtures/Post.php

@@ -0,0 +1,18 @@
+<?php
+
+namespace KFoobar\Uuid\Test\Fixtures;
+
+use Illuminate\Database\Eloquent\Model;
+use KFoobar\Uuid\Traits\HasUuid;
+
+class Post extends Model
+{
+    use HasUuid;
+
+    /**
+     * The attributes that aren't mass assignable.
+     *
+     * @var array
+     */
+    protected $guarded = ['id'];
+}

tests/Unit/HasUuidTest.php

@@ -0,0 +1,76 @@
+<?php
+
+namespace KFoobar\Uuid\Test\Unit;
+
+use Illuminate\Database\Eloquent\Model;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Foundation\Testing\RefreshDatabase;
+use Illuminate\Support\Facades\Schema;
+use KFoobar\Uuid\Test\Fixtures\Post;
+use KFoobar\Uuid\Test\Unit\TestCase;
+
+class HasUuidTest extends TestCase
+{
+    use RefreshDatabase;
+
+    protected $regex = '/^[0-9A-F]{8}-[0-9A-F]{4}-4[0-9A-F]{3}-[89AB][0-9A-F]{3}-[0-9A-F]{12}$/i';
+
+    protected function setUp(): void
+    {
+        parent::setUp();
+
+        Schema::create('posts', function (Blueprint $table) {
+            $table->id('id');
+            $table->uuid('uuid');
+            $table->string('heading')->nullable();
+            $table->timestamps();
+        });
+    }
+
+    public function testModelIsModel(): void
+    {
+        $post = new Post;
+
+        $this->assertInstanceOf(Model::class, $post);
+    }
+
+    public function testCreateModel()
+    {
+        $post = Post::create(['heading' => 'Lorem ipsum dolor']);
+
+        $this->assertMatchesRegularExpression($this->regex, $post->uuid);
+
+        $post = Post::first();
+
+        $this->assertMatchesRegularExpression($this->regex, $post->uuid);
+    }
+
+    public function testUpdateModel()
+    {
+        $post = Post::create(['heading' => 'Lorem ipsum dolor']);
+
+        $firstUuid = $post->uuid;
+
+        $post->update([
+            'heading' => 'Dolor ipsum lorem',
+        ]);
+
+        $secondUuid = $post->uuid;
+
+        $this->assertEquals($firstUuid, $secondUuid);
+    }
+
+    public function testSaveModelWithEmptyUuid()
+    {
+        $post = Post::create(['heading' => 'Lorem ipsum dolor']);
+
+        $post->uuid = '';
+        $post->save();
+
+        $post = Post::first();
+
+        $this->assertNotEmpty($post->uuid);
+        $this->assertNotNull($post->uuid);
+        $this->assertMatchesRegularExpression($this->regex, $post->uuid);
+    }
+}

tests/Unit/TestCase.php

@@ -0,0 +1,14 @@
+<?php
+
+namespace KFoobar\Uuid\Test\Unit;
+
+use Orchestra\Testbench\TestCase as BaseTestCase;
+
+abstract class TestCase extends BaseTestCase
+{
+
+    protected function defineEnvironment($app)
+    {
+        $app['config']->set('database.default', 'testing');
+    }
+}